CN111421238A - Laser grooving method - Google Patents

Laser grooving method Download PDF

Info

Publication number
CN111421238A
CN111421238A CN202010172422.2A CN202010172422A CN111421238A CN 111421238 A CN111421238 A CN 111421238A CN 202010172422 A CN202010172422 A CN 202010172422A CN 111421238 A CN111421238 A CN 111421238A
Authority
CN
China
Prior art keywords
laser
explosion
groove
proof sheet
track
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202010172422.2A
Other languages
Chinese (zh)
Other versions
CN111421238B (en
Inventor
李金恒
江耘
胡述旭
彭云贵
张涛
曹洪涛
吕启涛
高云峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Han s Laser Technology Industry Group Co Ltd
Original Assignee
Han s Laser Technology Industry Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Han s Laser Technology Industry Group Co Ltd filed Critical Han s Laser Technology Industry Group Co Ltd
Priority to CN202010172422.2A priority Critical patent/CN111421238B/en
Publication of CN111421238A publication Critical patent/CN111421238A/en
Application granted granted Critical
Publication of CN111421238B publication Critical patent/CN111421238B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36—Removing material
    • B23K26/362—Laser etching
    • B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/60—Preliminary treatment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

The embodiment of the invention discloses a laser grooving method, which comprises the following steps: providing an explosion-proof sheet and the size and the track of a pre-processing groove on the explosion-proof sheet; manufacturing a marking drawing file according to the size and the track of the pre-processing groove; according to marking drawing file laser machining forms the pressure release groove on explosion-proof piece, and laser processing equipment can not reduce the machining precision because of lasting processing to guarantee the machining precision of pressure release groove, with this yields that has promoted production and processing, saved manufacturing cost.

Description

Laser grooving method
Technical Field
The invention relates to the technical field of laser grooving, in particular to a laser grooving method.
Background
The traditional battery explosion-proof sheet is processed by adopting a mechanical stamping process, a T-shaped or Y-shaped pressure relief groove is stamped on the explosion-proof sheet by a stamping head of stamping equipment, and when the internal overpressure of the battery occurs, the pressure relief groove is broken to discharge internal media, so that the battery explosion is prevented.
But traditional mechanical stamping process, generally the condition need adopt fixed mould to fix the explosion-proof piece, adopts stamping die to carry out stamping process to the explosion-proof piece, and in the processing, fixed mould and stamping die can reduce the machining environment precision of stamping process because of the punching press wearing and tearing, have reduced the yields of production and processing.
Disclosure of Invention
The invention aims to provide a laser grooving method, and aims to solve the problems of poor machining precision and poor yield of a pressure relief groove machined by the existing mechanical stamping process.
A laser grooving method comprising the steps of:
providing an explosion-proof sheet and the size and the track of a pre-processing groove on the explosion-proof sheet;
manufacturing a marking drawing file according to the size and the track of the pre-processing groove;
and carrying out laser processing on the explosion-proof sheet according to the marking drawing file to form a pressure relief groove.
In one embodiment, the steps of providing the dimensions and the track of the explosion-proof piece and the groove pre-processed on the explosion-proof piece further include:
and providing a gland device, and fixing the explosion-proof sheet by adopting the gland device.
In one embodiment, the capping device comprises an upper cover and a lower cover, the upper cover covers the surface to be processed of the explosion-proof sheet, the upper cover is provided with a track groove, the track groove is the same as the track of the pre-processing groove, and the lower cover is provided with heat dissipation holes and is connected with the upper cover.
In one embodiment, in the step of laser processing the pressure relief groove on the explosion-proof sheet according to the marking pattern file, a picosecond laser is used for laser processing the explosion-proof sheet.
In one embodiment, the picosecond laser is a 1064nm infrared picosecond laser.
In one embodiment, in the step of forming the pressure relief groove on the explosion-proof sheet by laser processing according to the marking drawing file, a laser focusing lens is provided, and the laser focusing lens is a telecentric lens.
In one embodiment, the step of manufacturing the marking pattern file according to the size and the track of the pre-processing groove specifically comprises the following steps:
providing preprocessing time, and the size and the track of the preprocessing groove;
selecting the line width of a laser processing track according to the preprocessing time, the size of the preprocessing groove and the track;
and manufacturing the marking drawing file according to the preprocessing time, the line width of the laser processing track, the size of the preprocessing groove and the track.
In one embodiment, in the steps of providing the explosion-proof sheet and pre-processing the groove on the explosion-proof sheet, the explosion-proof sheet is a metal sheet with the thickness of 0.04mm-0.15 mm.
In one embodiment, the steps of laser processing the explosion-proof sheet according to the marking drawing file to form a pressure relief groove are as follows:
marking speed: 500mm/s-2000 mm/s;
frequency: 100KHz-1000 KHz;
pulse width: 5ps to 30 ps.
In one embodiment, a battery shell is mounted on the battery, and the battery shell comprises the explosion-proof sheet.
The embodiment of the invention has the following beneficial effects:
by adopting the laser grooving method, the pressure relief groove is formed on the explosion-proof sheet by laser processing according to the marking drawing file, and the processing precision of the pressure relief groove cannot be reduced by continuous processing of laser processing equipment, so that the processing precision of the pressure relief groove is ensured, the yield of production and processing is improved, and the production cost is saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
FIG. 1 is a flow chart of a laser grooving method in one embodiment.
Fig. 2 is a flow chart of the marking pattern making process of the laser grooving method shown in fig. 1.
Fig. 3 is a top view of a capping device in an embodiment.
Fig. 4 is a bottom view of the capping device shown in fig. 3.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the laser grooving method of an embodiment is mainly used for processing a pressure relief groove on a battery explosion-proof sheet, and specifically includes the following steps:
s100, providing the size and the track of the explosion-proof piece and the pre-processing groove on the explosion-proof piece, completing the preparation of the explosion-proof piece to be processed, and designing the size and the track of the pre-processing groove.
And S200, manufacturing a marking drawing file according to the size and the track of the pre-processing groove, and finishing the manufacturing of the marking drawing file.
And S300, forming a pressure relief groove on the explosion-proof sheet by laser processing according to the marking drawing file to obtain the explosion-proof sheet with the pressure relief groove.
Adopt laser beam machining to form the pressure relief groove, laser beam machining equipment can not reduce the machining precision because of lasting processing to guarantee the machining precision of pressure relief groove, with this yields that has promoted production and processing has saved manufacturing cost.
In the present embodiment, step S100 further includes: the gland device is provided, the gland device is adopted to fix the explosion-proof sheet, so that the explosion-proof sheet can be fixed on the processing platform by the gland device in the laser processing process, the explosion-proof sheet cannot move, the accuracy of the processing process is guaranteed, the high-precision pressure relief groove is processed, and the fracture pressure relief effect of the pressure relief groove when the overpressure is received is guaranteed.
The gland device is made of materials with good scratch resistance and good heat conductivity, is beneficial to recycling the gland of the explosion-proof sheet, ensures the gland precision and the heat dissipation performance, and is preferably a copper, iron and other metal jig with good heat dissipation performance.
As shown in fig. 3 and 4, the capping device includes an upper cover 10 and a lower cover 20, the upper cover 10 covers the surface to be processed of the explosion-proof sheet, the upper cover 10 is provided with a track groove 11, the track groove 11 is the same as the track of the preprocessing groove, the upper surface of the explosion-proof sheet is covered by the upper cover 10, the shape of the upper cover 10 corresponds to the shape of the explosion-proof sheet, only an opening with the same track of the preprocessing groove, namely the track groove 11, is reserved, when laser processing is performed, the flatness of the explosion-proof sheet is ensured, and the deformation of the explosion-proof sheet in the processing process is avoided. Be equipped with louvre 21 on the lower cover 20 to be connected with upper cover 10, louvre 21's setting can make the laser beam machining process, and the louvre 21 of bottom is accelerated to the heat dissipation from being heated of explosion-proof piece, in order to alleviate the heat influence of laser beam machining process, promotes the heat extraction effect, in order to reduce the thermal deformation ability of explosion-proof piece, so that the explosion-proof piece of machine-shaping has good machining precision, and the yields is high. Especially when the explosion-proof sheet is a thin metal sheet, the gland device can well realize gland of the explosion-proof sheet, guarantee the limit in the laser grooving process and further reduce the thermal deformation capacity. Preferably, the heat dissipation holes may be provided in plural and uniformly distributed on the lower cover 20 to provide a high heat dissipation capability.
In this embodiment, in step S100, the explosion-proof sheet is a metal sheet with a thickness of 0.04mm to 0.15mm, and the thin metal sheet is processed by laser, so as to obtain a completely formed pressure relief groove, and the processed yield of the explosion-proof sheet is high.
In this embodiment, in step S300, the explosion-proof sheet is laser-processed by using a picosecond laser, the pulse width of the picosecond laser is in the picosecond order, the line width of the laser processing track is narrow, when the pressure relief groove is processed by laser, compared with a common nanosecond laser, a larger heat affected zone is not generated when the explosion-proof sheet is processed by laser, the flatness of the whole explosion-proof sheet is not influenced by the tilting of the thinner explosion-proof sheet due to the heat generated by laser processing, the problems that the depth of the groove is not uniform and the shading of the processed pressure relief groove is not uniform and presents a concave-convex honeycomb shape due to the easy blockage of the generated edge burr in the pressure relief groove are solved, particularly when metal sheets with a thickness of less than 0.15mm are processed, the narrow pulse width of a picosecond laser is adopted, the metal sheet processing method has the advantages that the heat influence area is small, the edge burrs are few, and the back trace is light in the metal sheet processing process, so that the phenomena of large edge heat influence and serious back trace in the metal sheet processing process can be greatly solved. And when processing the use with the capping device cooperation, the louvre 21 structure of capping device bottom can further promote the heat extraction ability of explosion-proof piece to laser grooved back trace effect has been reduced to a certain extent.
It should be noted that, in step S300, a laser device is required to be provided, the laser device at least includes a picosecond laser, a laser focusing lens and a high-speed vibrating lens, the laser focusing lens adopts a telecentric lens, and compared with a common lens, the telecentric lens is adopted to focus laser, so that the effect of generated light spots is better, and the lens with a proper size needs to be selected according to the information of the marking image file, and the lens corresponds to the information of the marking image file, so that the problem that the laser focusing lens is too large, which causes too large laser beam, or the laser focusing lens is too small, which causes too small laser beam is not generated. And adjusting to focus the laser to the designated position on the explosion-proof sheet, inputting the marking drawing file to the software applied by the laser equipment, and setting the laser processing parameters on the laser equipment to ensure the precise grooving on the explosion-proof sheet.
During laser grooving, laser generated by laser equipment acts on the explosion-proof sheet at a well-debugged focus, and in the process, the position of a laser spot is adjusted and controlled by adopting a high-speed vibrating mirror, the explosion-proof sheet is subjected to laser processing according to the indication of a marking drawing file, and a pressure relief groove with a specified specification is processed at a specified position on the explosion-proof sheet.
In the embodiment, the picosecond laser is an infrared picosecond laser with the wavelength of 1064nm, and the infrared picosecond laser with the wavelength of 1064nm is adopted, so that when a thinner explosion-proof sheet is processed, the heat affected zone of the edge of the pressure relief groove formed by ultrafast laser processing is reduced, the burr generation amount is greatly reduced, and even if the edge of the groove is wiped by dust-free cloth, the situation that the measurement fluctuation of the groove depth is too large due to the fact that burrs enter the groove interior is avoided; the back trace of the laser processing pressure relief groove is reduced, the thin explosion-proof sheet, especially a metal sheet, cannot be tilted and deformed in the processing process, and the flatness measurement is ensured to be within an allowable range; the bottom of the groove processed to form the pressure relief groove is smooth, and the fluctuation of the depth and width of the pressure relief groove is measured integrally. Of course, in other embodiments, the picosecond laser may also be 355nm ultraviolet picosecond laser or other lasers, and in laser processing, the explosion-proof sheet presents fewer heat-affected zones, so that better flatness of the explosion-proof sheet can be ensured, and the influence of burrs and back marks is smaller.
As shown in fig. 2, step S200 specifically includes the following steps:
and S210, providing preprocessing time, size and track of the preprocessing groove.
S220, selecting the line width of the laser processing track according to the preprocessing time, the size of the preprocessing groove and the track, controlling the processing time by adopting the line width, increasing the line width of the processing track when the width and the length of the preprocessing groove are constant, and reducing the times of processing the track so as to reduce the preprocessing time. After the line width of a proper processing track is selected, the processing time can be properly shortened on the premise of ensuring the quality of the laser processing pressure relief groove, so that the yield of processing production is ensured.
In this step, the line width of the laser processing track is selected, which needs to consider both the processing efficiency and the processing quality and effect, and multiple test simulations are performed to obtain the optimal laser processing track line width value.
And S230, manufacturing a marking drawing file according to the preprocessing time, the line width of the laser processing track, the size of the preprocessing groove and the track, and inputting the marking drawing file into laser equipment to serve as a marking basis for subsequent laser processing.
Preferably, the width of the pre-processing groove on the explosion-proof sheet is 35um-150um, the depth is 30um-100um, and under the parameter of the groove, the double-line drawing file with the same length can be selected for marking through testing. In other embodiments, a three-line drawing or other drawing may be used according to different pre-processing time options, and the purpose of the three-line drawing or other drawing is to select a processing drawing to obtain better processing effect and processing efficiency. And the problem that the micro-groove can not be punched in the traditional mechanical punching process is also solved.
In this embodiment, the step follows step S300, and further includes the following steps:
s400, detecting the size parameters and the pressure relief performance of the pressure relief groove on the explosion-proof sheet, performing quality detection on the processed explosion-proof sheet, screening out qualified products and unqualified products, and placing the qualified products and the unqualified products respectively. Specifically, when the size parameters of the explosion-proof sheet are detected, the pressure relief grooves on the processed explosion-proof sheet are sequentially measured, the explosion-proof sheet with the measured groove depth and groove width dimensions exceeding the qualified range is judged as an unqualified product, then random pressure relief performance detection is carried out, and finally the qualified explosion-proof sheet is screened out.
In the random pressure relief performance detection, the performance of detecting a plurality of explosion-proof sheets is qualified, the laser grooving cannot lead to the reduction of the processing precision due to continuous processing, the performance of other explosion-proof sheets can be qualified, and compared with the traditional mechanical stamping process, the stamping precision needs to be continuously detected stage by stage, and the size precision of the processed pressure relief groove is superior and greatly changed continuously.
And S500, collecting the explosion-proof sheets qualified in detection, and finishing the processing production of the explosion-proof sheets.
Preferably, the battery is provided with a battery case, the battery case comprises an explosion-proof sheet, and the explosion-proof sheet can be used as a battery explosion-proof sheet. Can form the explosion-proof piece that has the pressure release groove with processing and detect, and will detect qualified product and use, install on the battery as battery explosion-proof piece, when this explosion-proof piece is mobile phone batteries explosion-proof piece, thinner metal explosion-proof piece can satisfy the demand of placing of mobile phone batteries shell, and the roughness of this explosion-proof piece is good, high durability and convenient installation, can not lead to the installation difficulty because of explosion-proof piece roughness is relatively poor, secondly, the pressure release groove that laser beam machining formed, the groove width and the groove depth that satisfy mobile phone explosion-proof piece pressure release groove are less, the high requirement of precision, can be when the inside superpressure of battery, the fracture in pressure release groove is accomplished to the accuracy, and accomplish the pressure release, avoid the explosion of battery.
In the embodiment, in step S300, the laser processing parameters include marking speed of 500-2000 mm/S, frequency of 100KHz-1000KHz, pulse width of 5-30 ps, and focus position of offset focus setting, and under the processing parameters, the ratio can be properly adjusted according to the laser processing effect, the maximum power of the laser is 20W, the marking range of the laser lens is 50mm × 50mm, and the laser generated by the laser repeatedly acts on the specified position of the explosion-proof sheet for many times to obtain the corresponding pressure relief groove.
For the mobile phone battery with certain explosion danger, the explosion-proof sheet can form safety protection, the quality of the explosion-proof sheet, particularly the quality of a pressure relief groove on the explosion-proof sheet is very important, and the pressure relief groove of the explosion-proof sheet processed by the laser grooving method has higher dimensional accuracy and can ensure excellent pressure relief performance.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

Claims (10)

1. A laser grooving method, comprising the steps of:
providing an explosion-proof sheet and the size and the track of a pre-processing groove on the explosion-proof sheet;
manufacturing a marking drawing file according to the size and the track of the pre-processing groove;
and carrying out laser processing on the explosion-proof sheet according to the marking drawing file to form a pressure relief groove.
2. The laser grooving method of claim 1, wherein the step of providing the dimensions and trajectories of the rupture disc and the pre-machined groove in the rupture disc further comprises:
and providing a gland device, and fixing the explosion-proof sheet by adopting the gland device.
3. The laser grooving method of claim 2, wherein the capping device comprises an upper cover and a lower cover, the upper cover covers the surface to be machined of the explosion-proof sheet, the upper cover is provided with a track groove, the track groove has the same track as the pre-machining groove, and the lower cover is provided with heat dissipation holes and is connected with the upper cover.
4. The laser grooving method of claim 1, wherein in the step of laser machining a relief groove in the blast proof sheet in accordance with the marking pattern, the blast proof sheet is laser machined with a picosecond laser.
5. The laser grooving method of claim 4, wherein the picosecond laser is a 1064nm infrared picosecond laser.
6. The laser grooving method of claim 1, wherein in the step of laser machining a relief groove on the blast proof sheet in accordance with the marking pattern, a laser focusing lens is provided, the laser focusing lens being a telecentric lens.
7. The laser grooving method of claim 1, wherein the step of making the marking pattern according to the size and trajectory of the pre-machined groove comprises the steps of:
providing preprocessing time, and the size and the track of the preprocessing groove;
selecting the line width of a laser processing track according to the preprocessing time, the size of the preprocessing groove and the track;
and manufacturing the marking drawing file according to the preprocessing time, the line width of the laser processing track, the size of the preprocessing groove and the track.
8. The laser grooving method of claim 1, wherein in the providing the explosion proof sheet and the pre-machining grooves on the explosion proof sheet in the step, the explosion proof sheet is a metal sheet having a thickness of 0.04mm to 0.15 mm.
9. The laser grooving method of claim 1,
laser processing is carried out on the explosion-proof sheet according to the marking drawing file to form a pressure relief groove, and the laser processing parameters are as follows:
marking speed: 500mm/s-2000 mm/s;
frequency: 100KHz-1000 KHz;
pulse width: 5ps to 30 ps.
10. The laser grooving method of claim 1, wherein a battery case is mounted on the battery, the battery case comprising the rupture disk.
CN202010172422.2A 2020-03-10 2020-03-10 Laser grooving method Active CN111421238B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010172422.2A CN111421238B (en) 2020-03-10 2020-03-10 Laser grooving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010172422.2A CN111421238B (en) 2020-03-10 2020-03-10 Laser grooving method

Publications (2)

Publication Number Publication Date
CN111421238A true CN111421238A (en) 2020-07-17
CN111421238B CN111421238B (en) 2022-12-13

Family

ID=71547864

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010172422.2A Active CN111421238B (en) 2020-03-10 2020-03-10 Laser grooving method

Country Status (1)

Country Link
CN (1) CN111421238B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116678754A (en) * 2023-07-31 2023-09-01 深圳铭创智能装备有限公司 Method and testing device for laser etching of cylindrical battery stainless steel shell explosion-proof wire

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271094A (en) * 2015-06-08 2017-01-04 中国兵器工业第五二研究所 A kind of method that cut alloy foil prepares explosion-suppressing material
CN109014584A (en) * 2018-09-06 2018-12-18 大族激光科技产业集团股份有限公司 A kind of micro-processing method of laser ablation paint layer
CN109304550A (en) * 2018-09-28 2019-02-05 郑州康德钛制品科技有限公司 A kind of new pattern laser mark tooling
CN110102902A (en) * 2019-05-09 2019-08-09 武汉华工激光工程有限责任公司 A kind of excessive film plating layer process of laser ablation AF
CN209754289U (en) * 2019-01-31 2019-12-10 厦门怡钛积科技有限公司 Precise laser cutting equipment for explosion-proof membrane

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271094A (en) * 2015-06-08 2017-01-04 中国兵器工业第五二研究所 A kind of method that cut alloy foil prepares explosion-suppressing material
CN109014584A (en) * 2018-09-06 2018-12-18 大族激光科技产业集团股份有限公司 A kind of micro-processing method of laser ablation paint layer
CN109304550A (en) * 2018-09-28 2019-02-05 郑州康德钛制品科技有限公司 A kind of new pattern laser mark tooling
CN209754289U (en) * 2019-01-31 2019-12-10 厦门怡钛积科技有限公司 Precise laser cutting equipment for explosion-proof membrane
CN110102902A (en) * 2019-05-09 2019-08-09 武汉华工激光工程有限责任公司 A kind of excessive film plating layer process of laser ablation AF

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116678754A (en) * 2023-07-31 2023-09-01 深圳铭创智能装备有限公司 Method and testing device for laser etching of cylindrical battery stainless steel shell explosion-proof wire
CN116678754B (en) * 2023-07-31 2023-10-20 深圳铭创智能装备有限公司 Method and testing device for laser etching of cylindrical battery stainless steel shell explosion-proof wire

Also Published As

Publication number Publication date
CN111421238B (en) 2022-12-13

Similar Documents

Publication Publication Date Title
US6476349B1 (en) Strip guiding device
CN111215765B (en) Processing method for processing precise photosensitive hole by ultraviolet laser and laser equipment
CN111421238B (en) Laser grooving method
CN107876984B (en) Gap welding method and device
JP4960215B2 (en) Metal foil negative electrode current collector processing roller and metal foil negative electrode current collector processing method
US6479787B1 (en) Laser unit and method for engraving articles to be included in cans
CN110498612A (en) A kind of processing method using infrared laser processing gradual change ground glass
CN214185743U (en) Laser-based cover plate full-page processing system
CN116638020A (en) Ball bowl forming process
JP5188364B2 (en) Laser processing method
CN111822879A (en) Ultrafast laser processing device and processing method for ferrite material
CN116228798A (en) Intelligent iron tower cutting detection method based on machine vision
CN102689097A (en) Method for deeply processing metal material by aid of laser
EP1123772A1 (en) Laser unit for marking the surface of a metal strip
JP4811745B2 (en) Cutting edge processing method, blade member, punching die manufacturing method and punching die
CN110253216A (en) A kind of processing method of earpiece dust cover
CN113020915B (en) Splicing forming method
CN212470181U (en) Detection device for laser deep fusion welding defects
JP7158153B2 (en) Method for manufacturing hot stamped molded article, mold for hot stamped molded article, and hot stamped molded article molded using the mold
JPH07214193A (en) Precise sharing die in press machine
RU2255383C2 (en) Method for manufacturing nuclear reactor fuel assembly
EP4331769A1 (en) Method for polishing a surface of an embossing tool comprising micro-structures
CN112743229A (en) Laser welding core parameter optimization method for improving welding seam strength of laser tailor-welded blank
CN219052588U (en) Battery cover plate full-periphery chamfering die
CN114346442B (en) Method for anode metal laser crack down on the wicked

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant